The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 30, 1978
Filed:
May. 20, 1977
Applicant:
Inventors:
Chauncey Orvis Rupe, Jerusalem, IL;
Robert Bauer, Bristol, IN (US);
Assignee:
Miles Laboratories, Inc., Elkhart, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
2323 / ; 2325 / ; 252408 ;
Abstract
A method, device and test reagent for detecting free available chlorine in aqueous fluids which utilizes as an indicator substance azine compounds of the formula: ##STR1## where R and R' are hydroxy or amino substituents and X, X', Y and Y' are hydrogen, hydroxy, methyl or methoxy substituents and may be the same or different. Preferably such test reagents are incorporated with a carrier member or with a wicking device for concentrating the aqueous fluid being tested in the area of the test reagent.